FAQ

What is the three level of the protection level of security item?adminsontes2018-11-09T06:18:17+00:00

The guide formulates three protection levels according to different system scales and security needs. Please refer to Table 2-1 for more details about three protection levels and corresponding security items.

H.265 is a video compression standard designed for the newest generations of high-resolution video. It’s a successor to the widely-used H.264 codec (also called AVC or MPEG-4 Part 10) and offers some major improvements over that now-aging compression scheme. H.265 was developed by the Joint Collaborative Team on Video Coding (JCT-VC), a group of video coding experts that started working on the compression standard back in 2010.

Why Is H.265 Better than H.264?

The H.265 codec offers some major improvements over the H.264 codec, which was first developed in the hazy days of 2003. There are far more improvements that we can cover here, but these are the highlights for consumers.

Better compression

H.265 offers massively improved compression over H.264. The newer codec can achieve nearly double the compression of its predecessor. With H.265, a video of the same apparent visual quality would take up only half as much space. Alternatively, a video of the same file size and bit rate could be significantly better looking. Part of this improvement comes from an increased macroblock size. H.264 allows for only 16 x 16 pixel macroblocks which are too small to be truly efficient in higher-resolution video. H.265 provides for 64 x 64 pixel macroblocks (now called coding tree units or CTUs), allowing for greater encoding efficiency at all resolutions.

Improved intraframe motion prediction

Video compression relies on predicting motion between frames. When there’s no change in a pixel, a video codec can save space by referencing it, rather than reproducing it. So improved motion prediction means improved file size and compression quality. Alongside the improved compression standards in H.265, we also find major improvements in motion prediction and compensation.

Improved intraframe prediction

Video compression also benefits from analyzing “movement” within individual frames, allowing single frames of video to be compressed more efficiently. This can be achieved by essentially describing pixels with a mathematical function rather than actual pixel values. The function takes up less space than pixel data, shrinking file size. However, the codec must support a sufficiently advanced mathematical function for this technique to be truly useful. H.265’s intraframe prediction function is far more detailed than H.264’s, allowing for 33 directions of motion over H.264’s nine directions.

Parallel processing

H.265 uses tiles and slices which can be decoded independently from the rest of a frame. This means that the decoding process can be split up across multiple parallel process threads, taking advantage of more efficient decoding opportunities on now-standard multi-core processors. With video resolutions getting higher, this kind of improved efficiency is required to decode video at a watchable pace on lower-end hardware.

Higher maximum frame size

The world is getting higher-res, and H.265 supports that. With H.265, video can be encoded at up to 8K UHD or 8192 pixels × 4320 pixels. Currently, only a handful of cameras can even produce 8K video, and very few monitors can display that kind of resolution. But just as HD is today’s standard, we can expect 4K and eventually 8K to rise to similar prominence eventually.

What type of lens should I choose during 2.8mm, 4mm, 6mm, 12mm?

What type of lens should I choose during 2.8mm, 4mm, 6mm, 12mm?adminsontes2018-11-09T04:39:01+00:00

Yes, some cameras have different type of lens optional, please take the below table as reference and choose the suitable lens. If the angle of the lens is declared on the description, you could think about the description firstly.

OEM stands for Original Equipment Manufacturer. In this case of COFIK, it means the products and their package coming with no logo, especially it means no retail model number on Hikvision products.

OEM hardware usually is packaged for distribution to companies who build systems. These companies are the original equipment manufacturers. This is why OEM products are usually sold in a generic box or wrapper instead of retail packaging. Comparing the same model on our site, the OEM product is 5% less than the branded one with logo and retail box.

COFIK is the first main tech supporter that is in charge of warranty and tech questions, not the local distributor, like Dahua USA or Hikvision USA, no matter the brand ones or OEM ones we have on sale. You should call or mail to use firstly if any problem happens during the operation of the security products.

The main advantage of the OEM or brand ones we have is the price, that is much more easy to check on internet.

The OEM requirement of Hikvision is below:

OEM Only Works When Quantity ordered Meet Request ( Camera > 24 PCS; PTZ > 6 PCS; NVR > 8PCS), Or the model will be the registered one by us;

NO Logo With Grey Box, Please Write Down The Model To Be Printed On Product (Can't Be Similar To Hikvision's)

Which should I choose? NTSC or PAL?

Which should I choose? NTSC or PAL?adminsontes2018-11-09T03:39:18+00:00

NTSC and PAL are formats used for displaying videos. The main differences between the two formats are based on their electrical differences, resolution quality and the rate at which broadcasts are displayed. When you put order on the products refer to the video, you should know which system you will need. The easy method is check the below image. NTSC is always used in North America, Japan, and most of South America while PAL is always used in Europe, most of Asia and Oceania, most of Africa, and parts of South America. There is a third standard, called SECAM (Sequential Couleur Avec Memoire or Sequential Color with Memory), that is used in Eastern Europe and France. If your country use SECAM, you could choose PAL as well.

I want to cancel an order placed wrongly

I want to cancel an order placed wronglyadminsontes2018-10-19T07:24:56+00:00

Cancel Your Order Before Payment

If you have not paid for your order, there is no need to contact us to cancel it. We ignore all orders until a matching payment is received. So if you haven’t paid, don’t worry, we’re not processing your order. You are under no obligation to follow through and pay for an order.

Cancel Your Order After Payment

If you have already paid for your order and wish to cancel, please contact us directly as soon as possible.

Change Your Order After Payment

If you have already paid for your order and wish to change, please contact us directly as soon as possible.

Note: If the goods have already been delivered we cannot cancel or change the order.

If you cancel an order full refunds are available.

How long will it take to delivery?

How long will it take to delivery?adminsontes2018-10-19T07:23:08+00:00

Orders generally ship within 2-7 business day providing stock is available while it is 15-25 business days if stock is out (we will contact you for this case and discuss if you will keep order or get a refund). You could contact us to confirm the handling time before putting order. You will receive an order confirmation, via email, shortly after your order has been placed. Please note this is not a shipping notice but we will email you a second time with a shipping notice/invoice to let you know that your order has been dispatched from our warehouse. We invite you to log into your account online anytime to view the status of all of your orders.

Orders that have incomplete or invalid shipping address may be delayed. COFIK will attempt to contact customer for an update on the shipping address. Orders that require manual billing or shipping address verification will be delayed until proper billing confirmation document is provided.

We ship items out as soon as possible, but this won’t always be the same day as your order. Please allow up to 10-20 business days for delivery time. If we anticipate a longer lead time, we will notify you. If you have any questions on a specific item’s lead time, please contact us at [email protected] or call 86-755-2344-7309 with any questions.

All of our orders are shipped via standard shipping method. Delivery times typically range between 10 – 20 business days.

No, they are not free. You may have to pay a fee when the money is sent to COFIK by Bank Transfer. If you pay by bank transfer, please ask your bank to provide you with clear details so you can account for this fee when you pay (via OUR). For example, if you are paying for an COFIK order of $500, and the bank will charge $10 to transfer, please submit for the transfer $510. If you only submit $500 then the payment that arrives with us (in this example) will only be $490 and we won’t be able to send your full order. Thank you!

What payment method do you accept?

What payment method do you accept?adminsontes2019-03-22T07:10:52+00:00

Orders can be paid using verified PayPal accounts or wire transfers. There is a 6% surcharge for using verified PayPal accounts (this is the PayPal currency exchange and withdraw fee). There is no surcharge for paying by wire transfer.

Do you accept international credit cards?

Do you accept international credit cards?adminsontes2018-10-19T03:55:22+00:00

You can always use a verified Paypal account or wire transfer for payments.If you don’t have a paypal account but would like to pay for the order via credit card directly,you could choose the second option when you enter the paypal payment website.The title of it is ‘Pay with a debit or credit card, or PayPal Credit’.By entering the info of your card,you could feel free to pay for your order and get security business.

How much is the international shipping?

How much is the international shipping?adminsontes2018-10-19T04:01:01+00:00

We ship all parcel via air mail parcel world wide, customer from most of the global area could purchase items directly from our site and the shipping charge will be calculated on the checking out process. But customs and duties vary from country to country. Any duty or custom fee charged by the custom office will be the responsibility of the customers.

If an international shipment is refused and/or returned, any taxes, duties, custom fees, brokerage fees, or shipping charges incurred from this return will be the responsibility of the customers.

Can you provide export documentation?

Can you provide export documentation?adminsontes2018-10-19T04:00:51+00:00

Yes. Upon request, we can provide multiple copies of commercial invoices, harmonized system codes (HS Code), certificates of quality, etc. You just need to send us an email for request to [email protected].

Are the security products listed on COFIK brand new?

Are the security products listed on COFIK brand new?adminsontes2018-10-19T04:00:39+00:00

Yes. Unless explicitly stated, all products you purchase on our website are brand new, factory-sealed, and under manufacturer warranty.